Inert material used in concrete

• Water

• Cement

• Aggregate

• Admixture

Intensity of colour of water which is accepted for drinking is about ...Mg/l

• 10

• 20

• 5

• 15

Specific gravity of mercury is

• 1

• 9.81

• 7.85

• 13.6

Wind rose diagram is related to

• Sail route

• Harbour design

• Runway alignment

• Air routes

The international nautical mile is same as ...K/h

• 18.52

• 1.609

• 1.852

• 16.09

The effective span to depth ratio of a continuous beam as per IS456 2000

• 20

• 26

• 35

• 7

Maximum tolerance in a 20m chain is

• 2mm

• 3mm

• 5mm

• 8mm

How many kilo liters are ther in 1 cubic meter

• 0.5

• 1

• 10

• 100

A fresh sludge becomes stale in

• 1 hour

• 2 hours

• 3-4 hours

• 6-8 hours

Scale of chord is used to measure or set out

• Length

• Height

• Width

• Angle